https://bugzilla.netfilter.org/show_bug.cgi?id=1637

From 11965f7020fbadcc9784daf598687841e96ef3fe Mon Sep 17 00:00:00 2001
From: Sam James <sam@gentoo.org>
Date: Thu, 24 Nov 2022 07:52:01 +0000
Subject: [PATCH 2/3] Fix -Wstrict-prototypes

Signed-off-by: Sam James <sam@gentoo.org>
--- a/src/network.c
+++ b/src/network.c
@@ -113,7 +113,7 @@ void nethdr_track_update_seq(uint32_t seq)
 	STATE_SYNC(last_seq_recv) = seq;
 }
 
-int nethdr_track_is_seq_set()
+int nethdr_track_is_seq_set(void)
 {
 	return local_seq_set;
 }